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    LIQUID CRYSTAL PHASE SHIFTER AND ELECTRONIC DEVICE
    21.
    发明申请
    LIQUID CRYSTAL PHASE SHIFTER AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20200067160A1

    公开(公告)日：2020-02-27

    申请号：US16609819

    申请日：2019-04-04

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Pengju ZHANG ,  Mingxing LIU ,  Haiyan SUN ,  Rui LI ,  Hao MIAO ,  Hong ZHU

    IPC: H01P1/18 ,  H01P3/08 ,  G02F1/13 ,  G02F1/31

    Abstract: A liquid crystal phase shifter is disclosed. The liquid crystal phase shifter includes a liquid crystal cell, a partition plate, a first microstrip line, a second microstrip line and liquid crystal molecules. The liquid crystal cell includes a first substrate and a second substrate disposed opposite to each other; the partition plate is disposed between the first substrate and the second substrate; the first microstrip line is disposed on a surface of the partition plate away from the second substrate; the second microstrip line is disposed on a surface of the partition plate away from the first substrate; and the liquid crystal molecules are provided between the first substrate and the partition plate, and between the second substrate and the partition plate.

    ORGANIC ELECTROLUMINESCENT DIODE AND DISPLAY PANEL
    23.
    发明申请
    ORGANIC ELECTROLUMINESCENT DIODE AND DISPLAY PANEL 有权

    公开(公告)号：US20240389453A1

    公开(公告)日：2024-11-21

    申请号：US18271050

    申请日：2022-04-28

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Haiyan SUN ,  Xiaojin ZHANG ,  Lixia QIU ,  Dan WANG

    IPC: H10K85/60 ,  C09K11/06 ,  H10K50/11 ,  H10K50/16 ,  H10K101/40 ,  H10K102/00

    Abstract: The present disclosure provides an organic electroluminescent diode, and belongs to the field of display technology. The organic electroluminescent diode includes an anode, a light emitting layer, a hole blocking layer, an electron transport layer, and a cathode, which are stacked in sequence; wherein the light emitting layer comprises a host material, a TADF material, and a fluorescent dopant material; the host material is selected from the compound represented by Chemical Formula 1, and the material of the hole blocking layer is selected from the compound represented by Chemical Formula 2: The organic electroluminescence diode can improve the lifetime of the diode.

    DISPLAY SUBSTRATE AND DISPLAY DEVICE
    24.
    发明申请
    DISPLAY SUBSTRATE AND DISPLAY DEVICE 有权

    公开(公告)号：US20240373714A1

    公开(公告)日：2024-11-07

    申请号：US18777935

    申请日：2024-07-19

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Haiyan SUN ,  Meishan XU ,  Xiaojin ZHANG ,  Changho LEE ,  Dan WANG

    IPC: H10K59/35 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K59/122 ,  H10K101/40

    Abstract: The present disclosure provides a display substrate and a display panel. The display substrate comprises: a base substrate, a first electrode layer, a first light-emitting layer, a first common connection layer, a second light-emitting layer, a third light-emitting layer, and a second electrode layer. The first electrode layer is provided on a side of the base substrate; the first light-emitting layer is provided on a side of the first electrode layer away from the base substrate; the first common connection layer is provided on a side of the first light-emitting layer away from the first electrode layer, and comprises a plurality of first sub-common connection layers; each second sub-light-emitting layer of the second light-emitting layer is provided on a side of each first sub-common connection layer away from the first light-emitting layer in one-to-one correspondence.

    Display Substrate and Display Device
    25.
    发明公开
    Display Substrate and Display Device 审中-公开

    公开(公告)号：US20240206303A1

    公开(公告)日：2024-06-20

    申请号：US17794626

    申请日：2021-08-30

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Haiyan SUN ,  Xiaojin ZHANG ,  Siqi WANG

    IPC: H10K59/80 ,  H10K59/50 ,  H10K102/00

    CPC classification number: H10K59/8793 ,  H10K59/50 ,  H10K59/873 ,  H10K59/879 ,  H10K2102/351

    Abstract: A display substrate and a display device are provided. The display substrate includes a light emitting element disposed on a base substrate, and an encapsulation layer, a connection layer, a light extraction layer, a polarization conversion layer and a polarization layer stacked sequentially at a light exiting side of the light emitting element. The light extraction layer is configured to convert at least a portion of light emitted by the light emitting element incident onto the light extraction layer into circularly polarized light with a set rotational direction to pass through the light extraction layer. The polarization conversion layer is configured to convert the circularly polarized light passing through the light extraction layer into linearly polarized light, with a polarization direction parallel to a direction of a light transmission axis of the polarization layer; the connection layer is configured to bond the light extraction layer to the encapsulation layer.

    LIGHT-EMITTING SUBSTRATE AND LIGHT-EMITTING DEVICE
    26.
    发明公开
    LIGHT-EMITTING SUBSTRATE AND LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20240196708A1

    公开(公告)日：2024-06-13

    申请号：US17908095

    申请日：2021-09-29

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Haiyan SUN ,  Xiaojin ZHANG ,  Siqi WANG ,  Dan WANG

    IPC: H10K59/80 ,  H10K59/126 ,  H10K59/38 ,  H10K102/00

    CPC classification number: H10K59/879 ,  H10K59/126 ,  H10K59/38 ,  H10K2102/351

    Abstract: A light-emitting substrate includes a substrate, a plurality of sub-pixels, a first light extraction layer and a second light extraction layer. Each sub-pixel includes a light-emitting element and a light conversion pattern disposed on a light-exit side of the light-emitting element. The plurality of sub-pixels include at least one first sub-pixel. The first light extraction layer is disposed on a side of the first sub-pixel away from the light-emitting element, and at least located in a region where the at least one first sub-pixel is located. The first light extraction layer includes first transparent substrate(s) and optically active substances added in each first transparent substrate. The second light extraction layer is disposed on a side of the first light extraction layer away from the light-emitting element. A refractive index of the second light extraction layer is smaller than a refractive index of the first light extraction layer.

    DISPLAY PANEL, CONTROL METHOD THEREOF AND DISPLAY DEVICE
    28.
    发明申请
    DISPLAY PANEL, CONTROL METHOD THEREOF AND DISPLAY DEVICE 有权

    公开(公告)号：US20210124227A1

    公开(公告)日：2021-04-29

    申请号：US16639724

    申请日：2019-04-18

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Rui LI ,  Haiyan SUN ,  Hao MIAO ,  Pengju ZHANG ,  Mingxing LIU ,  Hong ZHU ,  Yajie WANG ,  Jingzhe FANG

    IPC: G02F1/155 ,  G02F1/1516 ,  G02F1/157 ,  G02F1/1503 ,  G02F1/163

    Abstract: A display including a first substrate, a first electrochromic layer, a light emitting layer, a second electrochromic layer and a second substrate that are sequentially stacked are provided. A display area of the display panel includes a plurality of sub-pixels arranged in an array, the first electrochromic layer includes a plurality of first sub-electrochromic layers corresponding to the plurality of sub-pixels, and the second electrochromic layer includes a plurality of second sub-electrochromic layers corresponding to the plurality of sub-pixels, each first sub-electrochromic layer and each second sub-electrochromic layer are configured to switch between a light-transmissive state and a light-shielding state in response to an external voltage. The display panel can switch between a double-sided display state and a single-sided display state, meanwhile a phenomenon of mirror images can be avoided in case of double-sided display state.

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